New Core Guard Structure. A stronger structure is realized by absorbing shocks with the exterior instead of the core. Band structure. Unique, newly developed tough structure has reiforced the band connection section, where metal and resin intersect. Premium metal finishing. Sallaz polishing, said to be the ultimate polishing technology, produces exceptionally smooth mirror-finished surfaces on sloping parts of metal products. Main Functions : - Auto time adjustment (four times a day), World Time for approximately 300 cities, auto time zone and summer time rule updating. - Watch status indicators (number of time corrections, solar power generation amount, time zone/summer time rule update). - User warnings (low charge, battery check, posible magnetism exposure). - Alarm/timer settings, phone finder, battery level.